mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
Bug 1141931 part 6 - Move Ruby{Segment,Column}Enumerator to RubyUtils. r=dholbert
This commit is contained in:
Xidorn Quan
parent
fc20e60823
commit
67079982ec
@ -5,6 +5,9 @@
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "RubyUtils.h"
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#include "nsRubyFrame.h"
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#include "nsRubyBaseFrame.h"
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#include "nsRubyTextFrame.h"
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#include "nsRubyBaseContainerFrame.h"
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using namespace mozilla;
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@ -59,3 +62,129 @@ RubyTextContainerIterator::Next()
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mFrame = nullptr;
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}
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}
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RubySegmentEnumerator::RubySegmentEnumerator(nsRubyFrame* aRubyFrame)
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{
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nsIFrame* frame = aRubyFrame->GetFirstPrincipalChild();
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MOZ_ASSERT(!frame ||
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frame->GetType() == nsGkAtoms::rubyBaseContainerFrame);
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mBaseContainer = static_cast<nsRubyBaseContainerFrame*>(frame);
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}
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void
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RubySegmentEnumerator::Next()
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{
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MOZ_ASSERT(mBaseContainer);
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nsIFrame* frame = mBaseContainer->GetNextSibling();
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while (frame && frame->GetType() != nsGkAtoms::rubyBaseContainerFrame) {
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frame = frame->GetNextSibling();
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}
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mBaseContainer = static_cast<nsRubyBaseContainerFrame*>(frame);
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}
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RubyColumnEnumerator::RubyColumnEnumerator(
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nsRubyBaseContainerFrame* aBaseContainer,
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const nsTArray<nsRubyTextContainerFrame*>& aTextContainers)
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: mAtIntraLevelWhitespace(false)
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{
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const uint32_t rtcCount = aTextContainers.Length();
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mFrames.SetCapacity(rtcCount + 1);
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nsIFrame* rbFrame = aBaseContainer->GetFirstPrincipalChild();
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MOZ_ASSERT(!rbFrame || rbFrame->GetType() == nsGkAtoms::rubyBaseFrame);
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mFrames.AppendElement(static_cast<nsRubyContentFrame*>(rbFrame));
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for (uint32_t i = 0; i < rtcCount; i++) {
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nsRubyTextContainerFrame* container = aTextContainers[i];
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// If the container is for span, leave a nullptr here.
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// Spans do not take part in pairing.
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nsIFrame* rtFrame = !container->IsSpanContainer() ?
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container->GetFirstPrincipalChild() : nullptr;
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MOZ_ASSERT(!rtFrame || rtFrame->GetType() == nsGkAtoms::rubyTextFrame);
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mFrames.AppendElement(static_cast<nsRubyContentFrame*>(rtFrame));
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}
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// We have to init mAtIntraLevelWhitespace to be correct for the
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// first column. There are two ways we could end up with intra-level
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// whitespace in our first colum:
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// 1. The current segment itself is an inter-segment whitespace;
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// 2. If our ruby segment is split across multiple lines, and some
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// intra-level whitespace happens to fall right after a line-break.
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// Each line will get its own nsRubyBaseContainerFrame, and the
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// container right after the line-break will end up with its first
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// column containing that intra-level whitespace.
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for (uint32_t i = 0, iend = mFrames.Length(); i < iend; i++) {
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nsRubyContentFrame* frame = mFrames[i];
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if (frame && frame->IsIntraLevelWhitespace()) {
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mAtIntraLevelWhitespace = true;
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break;
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}
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}
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}
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void
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RubyColumnEnumerator::Next()
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{
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bool advancingToIntraLevelWhitespace = false;
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for (uint32_t i = 0, iend = mFrames.Length(); i < iend; i++) {
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nsRubyContentFrame* frame = mFrames[i];
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// If we've got intra-level whitespace frames at some levels in the
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// current ruby column, we "faked" an anonymous box for all other
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// levels for this column. So when we advance off this column, we
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// don't advance any of the frames in those levels, because we're
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// just advancing across the "fake" frames.
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if (frame && (!mAtIntraLevelWhitespace ||
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frame->IsIntraLevelWhitespace())) {
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nsIFrame* nextSibling = frame->GetNextSibling();
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MOZ_ASSERT(!nextSibling || nextSibling->GetType() == frame->GetType(),
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"Frame type should be identical among a level");
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mFrames[i] = frame = static_cast<nsRubyContentFrame*>(nextSibling);
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if (!advancingToIntraLevelWhitespace &&
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frame && frame->IsIntraLevelWhitespace()) {
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advancingToIntraLevelWhitespace = true;
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}
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}
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}
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MOZ_ASSERT(!advancingToIntraLevelWhitespace || !mAtIntraLevelWhitespace,
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"Should never have adjacent intra-level whitespace columns");
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mAtIntraLevelWhitespace = advancingToIntraLevelWhitespace;
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}
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bool
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RubyColumnEnumerator::AtEnd() const
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{
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for (uint32_t i = 0, iend = mFrames.Length(); i < iend; i++) {
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if (mFrames[i]) {
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return false;
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}
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}
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return true;
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}
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nsRubyContentFrame*
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RubyColumnEnumerator::GetFrameAtLevel(uint32_t aIndex) const
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{
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// If the current ruby column is for intra-level whitespaces, we
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// return nullptr for any levels that do not have an actual intra-
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// level whitespace frame in this column. This nullptr represents
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// an anonymous empty intra-level whitespace box. (In this case,
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// it's important that we NOT return mFrames[aIndex], because it's
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// really part of the next column, not the current one.)
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nsRubyContentFrame* frame = mFrames[aIndex];
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return !mAtIntraLevelWhitespace ||
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(frame && frame->IsIntraLevelWhitespace()) ? frame : nullptr;
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}
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void
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RubyColumnEnumerator::GetColumn(RubyColumn& aColumn) const
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{
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nsRubyContentFrame* rbFrame = GetFrameAtLevel(0);
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MOZ_ASSERT(!rbFrame || rbFrame->GetType() == nsGkAtoms::rubyBaseFrame);
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aColumn.mBaseFrame = static_cast<nsRubyBaseFrame*>(rbFrame);
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aColumn.mTextFrames.ClearAndRetainStorage();
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for (uint32_t i = 1, iend = mFrames.Length(); i < iend; i++) {
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nsRubyContentFrame* rtFrame = GetFrameAtLevel(i);
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MOZ_ASSERT(!rtFrame || rtFrame->GetType() == nsGkAtoms::rubyTextFrame);
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aColumn.mTextFrames.AppendElement(static_cast<nsRubyTextFrame*>(rtFrame));
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}
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aColumn.mIsIntraLevelWhitespace = mAtIntraLevelWhitespace;
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}
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@ -7,9 +7,16 @@
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#ifndef mozilla_RubyUtils_h_
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#define mozilla_RubyUtils_h_
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#include "nsTArray.h"
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#include "nsGkAtoms.h"
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#include "nsRubyTextContainerFrame.h"
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#define RTC_ARRAY_SIZE 1
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class nsRubyFrame;
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class nsRubyBaseFrame;
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class nsRubyTextFrame;
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class nsRubyContentFrame;
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class nsRubyBaseContainerFrame;
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namespace mozilla {
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@ -80,6 +87,64 @@ private:
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nsIFrame* mFrame;
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};
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/**
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* This enumerator enumerates each ruby segment.
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*/
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class MOZ_STACK_CLASS RubySegmentEnumerator
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{
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public:
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explicit RubySegmentEnumerator(nsRubyFrame* aRubyFrame);
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void Next();
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bool AtEnd() const { return !mBaseContainer; }
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nsRubyBaseContainerFrame* GetBaseContainer() const
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{
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return mBaseContainer;
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}
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private:
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nsRubyBaseContainerFrame* mBaseContainer;
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};
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/**
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* Ruby column is a unit consists of one ruby base and all ruby
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* annotations paired with it.
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* See http://dev.w3.org/csswg/css-ruby/#ruby-pairing
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*/
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struct MOZ_STACK_CLASS RubyColumn
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{
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nsRubyBaseFrame* mBaseFrame;
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nsAutoTArray<nsRubyTextFrame*, RTC_ARRAY_SIZE> mTextFrames;
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bool mIsIntraLevelWhitespace;
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RubyColumn() : mBaseFrame(nullptr), mIsIntraLevelWhitespace(false) { }
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};
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/**
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* This enumerator enumerates ruby columns in a segment.
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*/
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class MOZ_STACK_CLASS RubyColumnEnumerator
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{
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public:
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RubyColumnEnumerator(nsRubyBaseContainerFrame* aRBCFrame,
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const nsTArray<nsRubyTextContainerFrame*>& aRTCFrames);
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void Next();
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bool AtEnd() const;
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uint32_t GetLevelCount() const { return mFrames.Length(); }
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nsRubyContentFrame* GetFrameAtLevel(uint32_t aIndex) const;
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void GetColumn(RubyColumn& aColumn) const;
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private:
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// Frames in this array are NOT necessary part of the current column.
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// When in doubt, use GetFrameAtLevel to access it.
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// See GetFrameAtLevel() and Next() for more info.
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nsAutoTArray<nsRubyContentFrame*, RTC_ARRAY_SIZE + 1> mFrames;
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// Whether we are on a column for intra-level whitespaces
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bool mAtIntraLevelWhitespace;
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};
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}
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#endif /* !defined(mozilla_RubyUtils_h_) */
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@ -61,148 +61,6 @@ nsRubyBaseContainerFrame::GetFrameName(nsAString& aResult) const
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}
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#endif
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/**
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* Ruby column is a unit consists of one ruby base and all ruby
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* annotations paired with it.
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* See http://dev.w3.org/csswg/css-ruby/#ruby-pairing
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*/
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struct MOZ_STACK_CLASS mozilla::RubyColumn
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{
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nsRubyBaseFrame* mBaseFrame;
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nsAutoTArray<nsRubyTextFrame*, RTC_ARRAY_SIZE> mTextFrames;
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bool mIsIntraLevelWhitespace;
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RubyColumn() : mBaseFrame(nullptr), mIsIntraLevelWhitespace(false) { }
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};
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class MOZ_STACK_CLASS RubyColumnEnumerator
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{
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public:
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RubyColumnEnumerator(nsRubyBaseContainerFrame* aRBCFrame,
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const nsTArray<nsRubyTextContainerFrame*>& aRTCFrames);
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void Next();
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bool AtEnd() const;
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uint32_t GetLevelCount() const { return mFrames.Length(); }
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nsRubyContentFrame* GetFrameAtLevel(uint32_t aIndex) const;
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void GetColumn(RubyColumn& aColumn) const;
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private:
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// Frames in this array are NOT necessary part of the current column.
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// When in doubt, use GetFrameAtLevel to access it.
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// See GetFrameAtLevel() and Next() for more info.
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nsAutoTArray<nsRubyContentFrame*, RTC_ARRAY_SIZE + 1> mFrames;
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// Whether we are on a column for intra-level whitespaces
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bool mAtIntraLevelWhitespace;
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};
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RubyColumnEnumerator::RubyColumnEnumerator(
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nsRubyBaseContainerFrame* aBaseContainer,
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const nsTArray<nsRubyTextContainerFrame*>& aTextContainers)
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: mAtIntraLevelWhitespace(false)
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{
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const uint32_t rtcCount = aTextContainers.Length();
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mFrames.SetCapacity(rtcCount + 1);
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nsIFrame* rbFrame = aBaseContainer->GetFirstPrincipalChild();
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MOZ_ASSERT(!rbFrame || rbFrame->GetType() == nsGkAtoms::rubyBaseFrame);
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mFrames.AppendElement(static_cast<nsRubyContentFrame*>(rbFrame));
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for (uint32_t i = 0; i < rtcCount; i++) {
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nsRubyTextContainerFrame* container = aTextContainers[i];
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// If the container is for span, leave a nullptr here.
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// Spans do not take part in pairing.
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nsIFrame* rtFrame = !container->IsSpanContainer() ?
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container->GetFirstPrincipalChild() : nullptr;
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MOZ_ASSERT(!rtFrame || rtFrame->GetType() == nsGkAtoms::rubyTextFrame);
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mFrames.AppendElement(static_cast<nsRubyContentFrame*>(rtFrame));
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}
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// We have to init mAtIntraLevelWhitespace to be correct for the
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// first column. There are two ways we could end up with intra-level
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// whitespace in our first colum:
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// 1. The current segment itself is an inter-segment whitespace;
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// 2. If our ruby segment is split across multiple lines, and some
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// intra-level whitespace happens to fall right after a line-break.
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// Each line will get its own nsRubyBaseContainerFrame, and the
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// container right after the line-break will end up with its first
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// column containing that intra-level whitespace.
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for (uint32_t i = 0, iend = mFrames.Length(); i < iend; i++) {
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nsRubyContentFrame* frame = mFrames[i];
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if (frame && frame->IsIntraLevelWhitespace()) {
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mAtIntraLevelWhitespace = true;
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break;
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}
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}
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}
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void
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RubyColumnEnumerator::Next()
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{
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bool advancingToIntraLevelWhitespace = false;
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for (uint32_t i = 0, iend = mFrames.Length(); i < iend; i++) {
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nsRubyContentFrame* frame = mFrames[i];
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// If we've got intra-level whitespace frames at some levels in the
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// current ruby column, we "faked" an anonymous box for all other
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// levels for this column. So when we advance off this column, we
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// don't advance any of the frames in those levels, because we're
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// just advancing across the "fake" frames.
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if (frame && (!mAtIntraLevelWhitespace ||
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frame->IsIntraLevelWhitespace())) {
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nsIFrame* nextSibling = frame->GetNextSibling();
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MOZ_ASSERT(!nextSibling || nextSibling->GetType() == frame->GetType(),
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"Frame type should be identical among a level");
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mFrames[i] = frame = static_cast<nsRubyContentFrame*>(nextSibling);
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if (!advancingToIntraLevelWhitespace &&
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frame && frame->IsIntraLevelWhitespace()) {
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advancingToIntraLevelWhitespace = true;
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}
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}
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}
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MOZ_ASSERT(!advancingToIntraLevelWhitespace || !mAtIntraLevelWhitespace,
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"Should never have adjacent intra-level whitespace columns");
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mAtIntraLevelWhitespace = advancingToIntraLevelWhitespace;
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}
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bool
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RubyColumnEnumerator::AtEnd() const
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{
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for (uint32_t i = 0, iend = mFrames.Length(); i < iend; i++) {
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if (mFrames[i]) {
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return false;
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}
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}
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return true;
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}
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nsRubyContentFrame*
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RubyColumnEnumerator::GetFrameAtLevel(uint32_t aIndex) const
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{
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// If the current ruby column is for intra-level whitespaces, we
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// return nullptr for any levels that do not have an actual intra-
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// level whitespace frame in this column. This nullptr represents
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// an anonymous empty intra-level whitespace box. (In this case,
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// it's important that we NOT return mFrames[aIndex], because it's
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// really part of the next column, not the current one.)
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nsRubyContentFrame* frame = mFrames[aIndex];
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return !mAtIntraLevelWhitespace ||
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(frame && frame->IsIntraLevelWhitespace()) ? frame : nullptr;
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}
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void
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RubyColumnEnumerator::GetColumn(RubyColumn& aColumn) const
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{
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nsRubyContentFrame* rbFrame = GetFrameAtLevel(0);
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MOZ_ASSERT(!rbFrame || rbFrame->GetType() == nsGkAtoms::rubyBaseFrame);
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aColumn.mBaseFrame = static_cast<nsRubyBaseFrame*>(rbFrame);
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aColumn.mTextFrames.ClearAndRetainStorage();
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for (uint32_t i = 1, iend = mFrames.Length(); i < iend; i++) {
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nsRubyContentFrame* rtFrame = GetFrameAtLevel(i);
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MOZ_ASSERT(!rtFrame || rtFrame->GetType() == nsGkAtoms::rubyTextFrame);
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aColumn.mTextFrames.AppendElement(static_cast<nsRubyTextFrame*>(rtFrame));
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}
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aColumn.mIsIntraLevelWhitespace = mAtIntraLevelWhitespace;
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}
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static gfxBreakPriority
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LineBreakBefore(nsIFrame* aFrame,
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nsRenderingContext* aRenderingContext,
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@ -9,10 +9,9 @@
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#ifndef nsRubyBaseContainerFrame_h___
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#define nsRubyBaseContainerFrame_h___
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#include "RubyUtils.h"
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#include "nsContainerFrame.h"
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#define RTC_ARRAY_SIZE 1
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/**
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* Factory function.
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* @return a newly allocated nsRubyBaseContainerFrame (infallible)
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@ -20,12 +19,6 @@
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nsContainerFrame* NS_NewRubyBaseContainerFrame(nsIPresShell* aPresShell,
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nsStyleContext* aContext);
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namespace mozilla {
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struct RubyColumn;
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}
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class nsRubyTextContainerFrame;
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class nsRubyBaseContainerFrame final : public nsContainerFrame
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{
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public:
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@ -65,51 +65,12 @@ nsRubyFrame::GetFrameName(nsAString& aResult) const
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}
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#endif
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/**
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* This enumerator enumerates each segment.
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*/
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class MOZ_STACK_CLASS SegmentEnumerator
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{
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public:
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explicit SegmentEnumerator(nsRubyFrame* aRubyFrame);
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void Next();
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bool AtEnd() const { return !mBaseContainer; }
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nsRubyBaseContainerFrame* GetBaseContainer() const
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{
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return mBaseContainer;
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}
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private:
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nsRubyBaseContainerFrame* mBaseContainer;
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};
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SegmentEnumerator::SegmentEnumerator(nsRubyFrame* aRubyFrame)
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{
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nsIFrame* frame = aRubyFrame->GetFirstPrincipalChild();
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MOZ_ASSERT(!frame ||
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frame->GetType() == nsGkAtoms::rubyBaseContainerFrame);
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mBaseContainer = static_cast<nsRubyBaseContainerFrame*>(frame);
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}
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void
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SegmentEnumerator::Next()
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{
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MOZ_ASSERT(mBaseContainer);
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nsIFrame* frame = mBaseContainer->GetNextSibling();
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while (frame && frame->GetType() != nsGkAtoms::rubyBaseContainerFrame) {
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frame = frame->GetNextSibling();
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}
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mBaseContainer = static_cast<nsRubyBaseContainerFrame*>(frame);
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}
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/* virtual */ void
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nsRubyFrame::AddInlineMinISize(nsRenderingContext *aRenderingContext,
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nsIFrame::InlineMinISizeData *aData)
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{
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for (nsIFrame* frame = this; frame; frame = frame->GetNextInFlow()) {
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for (SegmentEnumerator e(static_cast<nsRubyFrame*>(frame));
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for (RubySegmentEnumerator e(static_cast<nsRubyFrame*>(frame));
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!e.AtEnd(); e.Next()) {
|
||||
e.GetBaseContainer()->AddInlineMinISize(aRenderingContext, aData);
|
||||
}
|
||||
@ -121,7 +82,7 @@ nsRubyFrame::AddInlinePrefISize(nsRenderingContext *aRenderingContext,
|
||||
nsIFrame::InlinePrefISizeData *aData)
|
||||
{
|
||||
for (nsIFrame* frame = this; frame; frame = frame->GetNextInFlow()) {
|
||||
for (SegmentEnumerator e(static_cast<nsRubyFrame*>(frame));
|
||||
for (RubySegmentEnumerator e(static_cast<nsRubyFrame*>(frame));
|
||||
!e.AtEnd(); e.Next()) {
|
||||
e.GetBaseContainer()->AddInlinePrefISize(aRenderingContext, aData);
|
||||
}
|
||||
@ -169,7 +130,7 @@ nsRubyFrame::Reflow(nsPresContext* aPresContext,
|
||||
startEdge, availableISize, &mBaseline);
|
||||
|
||||
aStatus = NS_FRAME_COMPLETE;
|
||||
for (SegmentEnumerator e(this); !e.AtEnd(); e.Next()) {
|
||||
for (RubySegmentEnumerator e(this); !e.AtEnd(); e.Next()) {
|
||||
ReflowSegment(aPresContext, aReflowState, e.GetBaseContainer(), aStatus);
|
||||
|
||||
if (NS_INLINE_IS_BREAK(aStatus)) {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user